Magneto-electric machine.



E. TROIKE. MAGNET() ELECTRIC MACHINE. APPLICATION FILED Nov. so. 190s.

aftoznufv on rTED sTATEs PATENT onirica.

ERNST TROI-KE, OF SANDUSKY, OHIO, ASSIGN'OR OF ONE-FO URTH TO PAUL TROIKE, OF SANDUSKY, OHIO.

MAGNE TO-ELE CTRIC MACHINE Specification of Letters Patent.

Patented June 29, 1909.

Application filed November 30, 1908. Serial N o. 465,295.

To all whom it ma/ I/ concern:

Be it known that l, ERNST Tnourn, a subject of the Emperor of Germany, residing at Sandusky, in the county of Erie and State of Ohio, have invented certain new and useful Improvements in Magneto Electric Machines, of which the following is a specification.

This invention relates to that class of electric generators known asbipolar magnetoelectric machines, andhas particular reference to certain specific details of improvement whereby the same is adapted es ecially for use in connection with hydrocar on engines to cause ignition of the miXed charges of air and hydrocarbon fuel. It is to be understood, however, that the invention is not limited to such specific use, but is adapted also for use wherever it is desired to makev use of an electric spark for lighting or ignition pur oses.

he invention is adapted especially for the production'of a strong hot spark and as the result of a comparatively slow movement of the armature. v n

I am aware that oscillating armatures in magneto-electric machines have heretofore been proposed, but in my experience l have ascertained that such devices are generally unsatisfactory as heretofore contemplated.

The machinel constituting the subjectmatter of this invention is designed primarily for use in connection With my improved hydrocarbon engine constituting the subjectmatter of a separate application filed of even date herewith, Serial Number 465,294.

For a full understanding of the invention reference is to be had to the following detail description and Ato the accompanying drawings, in which- Figure 1 is a vertical longitudinal sectional view; Fig. 2 is a vertical end view of the device, and Fig. 3 is a detail cross section.

rThroughout the following detail description and on the several figures of the drawing similar parts are referred to by like reference characters,

Referring specifically to the drawings, I have shown at a base plate of any suitable material, preferably brass, which is connected to the support and upon which the several features constituting this invention are mounted. A pair of cast iron pole-pieces 11 are mounted upon the upper side of the base 1() and are provided With oppositely disposed concave cylindrical faces 11. Rigidly and l permanently connected to said pole-pieces are a plurality of magnets 1.2 and 13, the poles of which terminate adjacent to the lower edges of the polo-pieces 11 and proximate to thc hase 10. rl`he said faces 11 are substantially concentric and journaled for operation therein is an armature com arising an iron core 14, in the form of a spoo upon which a coil of insulated wire is wound,one end of the wire being connected to said core. The armature at each end is of peculiar construction an-:l comprises a substantially flat disk 15, ];)referahly of brass and in which is tapped centrally a trunnion 16. Surrounding the trunnion 16 adjacent the outer face of the disk is a disk of insulation having` a iiange 17 and upon which disk adjacent said flange 17 is a ring or tire 18 of Suitable conducting material such as brass. Another disk of insulation 19 retains said ring 18 and is Secured to the disk 17 and plate 15 in any suitable and permanent manner, as bv screws. The construction of the armature is substantially the saine at both ends, but the trunnion 16 is longer than the trunnion 16 and is provided at its outer end with an operating arm 21 for operation thereof from any suitable source of power such as the crank shaft of an engine and whereby the armature is given an oscillation or rotation through a portion of a circle. The trunnions 16 and 16 are journaled in bearing plates 22 rigidly secured to the base plate 10 and polepieces 11 in any suitab e manner. 'i he plates 22 are provided with means for supplying oil to the trunnions and for the retention thereof in any convenient manner.

The outer end of the wire 23 is passed through the disk 15 from which it is insulated by means of a thimble 24 and is attached upon Athe inner surface of the ring 1S. A brush 25 is suitably mounted for Contact with saidring 18 and is supported radially thereto. The outer end of the brush has 'connected thereto by binding nuts a conducting wire 26. The disk 15 at the opposite end of the armature is engaged by a secondary brush 27 mounted within a housingl 2S carried by a cover plate 29 insulated from but connected to the pole-piece 11 and between the legs of the poles 12. Upon sullicient oscillation of the armature to causo the edge 14/ to pass the point 11 of the pole-.piece the electricity generated by the brushes in themanllt) ner aboveindieated will be caused to produce a spark 1n connection with any suitable sparking devices.

lation disk, a thiinble of insulation extending through' the latter mentioned core disk, the outer end of the winding being passed through saidthimble and disk of insulation and connected to said ring, a pair of' brushes, "1.-

one eo'perating with one of said disks and the other eoperetingwith said ring, and a plate of insulation secured to the disk of insulation to retain the said ring thereon.

In testimony whereof I a'llX my signature 25 in presence of tWo Witnesses.

v ERNST TROIKE. Witnesses GEO. L. BEELER, PAUL Tnormz.A -i' 

